8154956: Module system implementation refresh (4/2016)
Reviewed-by: alanb, mchung, chegar, redestad
Contributed-by: alan.bateman@oracle.com, mandy.chung@oracle.com, erik.joelsson@oracle.com, chris.hegarty@oracle.com, peter.levart@gmail.com, sundararajan.athijegannathan@oracle.com